Home / 7,850.46-11,775.66-2,788.38

Finding the Fourth Proportional to 7,850.46, 11,775.66 and 2,788.38

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Solution

The fourth proportional to 7,850.46, 11,775.66 and 2,788.38 is: 4,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.46 : 11,775.66 = 2,788.38 : x
  2. Step 2: Convert to fraction form
    7,850.46/11,775.66 = 2,788.38/x
  3. Step 3: Cross multiply
    7,850.46x = 11,775.66 × 2,788.38
  4. Step 4: Simplify right side
    7,850.46x = 32,835,014.83
  5. Step 5: Solve for x
    x = 32,835,014.83/7,850.46
  6. Step 6: Final answer
    x = 4,182.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.